Breech for firing devices of all kinds, particularly adapted for shell mortars



Feb. 27, 1923.

A. WOLFF BREECH FOR FIRING DEVICES OF ALL KINDS, PARTICULARLY ADAPTEDFOR SHELL MORTARS Filed July 50, I920 w W A/ Patented Feb. 27, 1923.

UNEE

TES

ALFRED WOLFE, OF BERLIN, GERMANY.

BREECH FOR FIRING DEVICES MOBTARS.

Application filed July 30,

To all whom it may canoe 1%:

Be it known that I, ALFRED lVoLrr, citizen of Germany, and resident ofBerlin, have invented a new and useful Breech tor Firing Devices of AllKinds, Particularly Adapted for Shell Mortars (for which I have filedapplications in Germany, February 17, 1916, and January 7, 1916; Spain,January 23, 1920; Austria, March 17, 1916, and November 10, 1917Hungary, March 21, 1916; Switzerland, January 3, 1920; Netherlands,December 27, 1917, and December 28, 1917, and Sweden, March 26, 1918),of which the following is a specification.

The present invention relates to a breech tor firing devices of allkinds, and is in particular adapted for shell-mortars.

The feature of the present invention consists in that the same member isemployed for cocking and securing, or releasing for operation,respectively, the firing device, a signal bolt being provided, which byits position will indicate whether the firing device is cocked or not,and that the device is fired by aid of a member which is movable in alldirections, so that it may be operated from any side and with equaladvantage.

Compared to similar devices heretofore disclosed which all possessed aseparate cocking and a'separate securing device, the device according tothe present invention embodies a number of particular advantages. Owingto the greatly simplified manipulation, as only one operation isrequired for cooking and securing, the firing speed of the device isconsiderably increased and at the same time the greatest reliability inworking is obtained, as, in case the cooked device should go offunintentionally the percussion bolt can never act with its full force,but only relatively to the gradually yielding securing device.Furthermore the fact that the cocking and securing device is arranged atthe side. a number of turther advantages is secured, as it allows ot abetter cover of the crew of the mortar.

The accompanying drawing is a sectional view of an apparatus constructedin accordance with my invention.

In this drawing a is the wall of the mortar, within which the percussionbolt 0 with its bar 12 is movable in known manner under action of aspring Z). The cocking and securing, or releasing for operation of thepercussion bolt or firing pin is effected by the 1920. Serial No.400,259.

eccentric bolt (Z which is operated from outside by the throwing over ofa lever c. On the said eccentric bolt d is provided a sh0ulder d whichin the position shown by full lines engaged with the shoulder 0 of thepercussion bolt or firing pin indicates the cocked and secured positionof the percussion bolt, whereas the dotted lines indicate the positionof the shoulder d in cocked and released position or the percussion bolt0, or the bar 0, respectively. The lever e engages in both its terminalpositions against stop lugs f, 7 preferably with a light spring.

In a bore of the eccentric bolt d is fitted a signal bolt 9 which isplaced under action of a spring 2'. The arrangement is such, that whenthe firing pin is cooked the signal bolt does not project from the boltd, but that when the tiring pin is released, by the bar Z, the spring 7)projects the firing pin 0 ant the shoulder 0 will strike the cam face ofthe head it and thereby project the signal bolt.

By means of the bar Z, which may be engaged with a shoulder c of thefiring pin and on which acts a spring 072., the trigger is may becoupled to the firing pin 0, to hold the latter in cocked position, thebar Z being connected by means of bolt 1' or in a similar manner withthe trigger is, for universal rocking movement of the trigger and thelatter being held by the same arrangement only, and without furthermeans to the mortar.

The firing is effected in any suitable manner by hand, by means of arope fastened into hole 0 or other means, and as the trigger can move ineither direction; it may also be effected from either side.

The position shown in the drawing shows the device in a cocked position.By moving the trigger is from the position 'shown, the bar Z is liftedoff and will then, under action of spring 6 release the bolt 0.

Should the pin 0 be released by the bolt Z, while the cocking lever c isin the full line position, said pin will cam said lever around to dottedline position and in so doing, said pin will be retarded. Henceunintentional firing is prevented.

The arrangement shown and described in the foregoing specification maybe modified in details without departing from the idea of the invention.

Claims.

1. In ordnance, a breech, a firing pin there- OF ALL KINDS, PARTICULARLYADAPTED FOR SHELL hold the firin )in in cocked osition an eccentric boltmounted forpartia-l rotation in 5 the breech and arranged to move thefiring pin to corked position when said eccentric bolt is turned in onedirection, and a spring, 7

retracted signal bolt arranged in the bore of the eccentric bolt andprojected'by the firing pin when the latter is projected to firingposition.

2. In ordnance, a breechg-itspring' projected firing piirhaving' a pairof shoulders, a trigger having means to engage one of said shoulders andhold the firing pin in cocked position, aneccentric bolt mounted forpartial rotation and having means to en age; the other shoulder of thefiring pin to inove the latter to corked position when said eccentricbolt is turned in one direction and a spring retracted signal boltarranged in the bore of the eccentric bolt and having a beveled head forengagement by the last named shoulder ot the firing pin to cause saidsignal bolt to be projected when the firing; pin is projected by itsspring to firing position.

In testimony whereof I aifix my signature in presence of two Witnesses.

ALFRED VVOLFF. Vitnesses CARL Gianni/r, KARL KWANZ.

